linux-kernel - Re: [PATCH] ASoC: cs35l56: Accept values greater than 0 as IRQ numbers

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Message-ID: <917507e5-dc6c-4e18-a7e1-554625de604e@sirena.org.uk>
Date: Mon, 17 Jun 2024 15:04:14 +0100
From: Mark Brown <broonie@...nel.org>
To: Simon Trimmer <simont@...nsource.cirrus.com>
Cc: linux-sound@...r.kernel.org, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, patches@...nsource.cirrus.com
Subject: Re: [PATCH] ASoC: cs35l56: Accept values greater than 0 as IRQ
 numbers

On Mon, Jun 17, 2024 at 02:53:38PM +0100, Simon Trimmer wrote:
> IRQ lookup functions such as those in ACPI can return error values when
> an IRQ is not defined. The i2c core driver converts the error codes to a
> value of 0 and the SPI bus driver passes them unaltered to client device
> drivers.
> 
> The cs35l56 driver should only accept positive non-zero values as IRQ
> numbers.

Have all architectures removed 0 as a valid IRQ?

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